The monitor lizard was climbing up the woman's front door
The woman returned home from shopping and spotted the ferocious reptile clawing at the metal grill over her doorway in Samut Prakan province, Thailand.
Rescuers grappled with the beast and eventually tied it down and set it free among nearby woodland on Tuesday afternoon at 5.20pm.
Rescue worker Somchai Tangon said: "The monitor lizard was big. Between one and two yards long.
The giant creature was caught and then released back in the jungle
"We gently caught it and released it in the jungle where it cannot return to the home.
"The lady was distressed but it can also be good luck if a monitor lizard comes to the house. Perhaps in the future she will have money come to her."
It is believed having a monitor lizard coming to a house could be a sign of good luck
Reptiles and amphibians discovered in Ecuador
Fri, January 15, 2010
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A male O'Shaughnessy's Dwarf Iguana in a rare Ecuadorian cloudforest that is in danger of disappearing from global warming (Paul S. Hamilton/RAEI.org)
The Asian water monitor lizard is among one of the most common reptiles in Thailand. It can grow up to 6 ft in length. They feast on eggs, smaller reptiles, fish, birds and small mammals but can occasionally attack humans if they're provoked.